Evidence map›Paper›PMID 28680574›Full record

ArticlePulmonary circulation2017

Chronic use of PAH-specific therapy in World Health Organization Group III Pulmonary Hypertension: a systematic review and meta-analysis.

Kurt W Prins, Sue Duval, Jeremy Markowitz, Marc Pritzker, Thenappan Thenappan

Open access · hybridAbstract read
In one paragraph

Article in Pulmonary circulation, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.8field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 77 citations in OpenAlex.

  1. Trial
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  4. Article
  5. Pulmonary hypertension associated with lung diseases.The European respiratory journal · 2024
    Review
  6. Article
  7. Article
  8. Article
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  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
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  16. Pulmonary Hypertension: A Contemporary Review.American journal of respiratory and critical care medicine · 2023
    Review
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Kurt W PrinsCardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, USA.
Sue DuvalCardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, USA.
Jeremy MarkowitzCardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, USA.
Marc PritzkerCardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, USA.
Thenappan ThenappanCardiovascular Division, University of Minnesota Medical School, Minneapolis, MN, USA.
University of Minnesota Medical Center · US

Funding

Investigating microtubules in Duchenne cardiomyopathyF32HL129554 · NHLBI · UNIVERSITY OF MINNESOTA · PI PRINS, KURT W · 2015 to 2016
$81k
NHLBI NIH HHS F32 HL129554
6 · The paper itself

Abstract

Pulmonary hypertension (PH) complicating chronic obstructive pulmonary disease (COPD-PH) and interstitial lung disease (ILD-PH) (World Health Organization [WHO] Group III PH) increases medical costs and reduces survival. Despite limited data, many clinicians are using pulmonary arterial hypertension (PAH)-specific therapy to treat WHO Group III PH patients. To further investigate the utility of PAH-specific therapy in WHO Group III PH, we performed a systematic review and meta-analysis. Relevant studies from January 2000 through May 2016 were identified in the MEDLINE, EMBASE, and COCHRANE electronic databases and www.clinicaltrials.gov. Change in six-minute walk distance (6MWD) was estimated using random effects meta-analysis techniques. Five randomized controlled trials (RCTs) in COPD-PH (128 placebo or standard treatment and 129 PAH-medication treated patients), two RCTs in ILD-PH (23 placebo and 46 treated patients), and four single-arm clinical trials (50 patients) in ILD-PH were identified. Treatment in both COPD-PH and ILD-PH did not worsen hypoxemia. Symptomatic burden was not consistently reduced but there were trends for reduced pulmonary artery pressures and pulmonary vascular resistance with PAH-specific therapy. As compared to placebo, 6MWD was not significantly improved with PAH-specific therapy in the five COPD-PH RCTs (42.7 m; 95% confidence interval [CI], -1.0 - 86.3). In the four single-arm studies in ILD-PH patients, there was a significant improvement in 6MWD after PAH-specific treatment (46.2 m; 95% CI, 27.9-64.4), but in the two ILD-PH RCTs there was not an improvement (21.6 m; 95% CI, -17.8 - 61.0) in exercise capacity when compared to placebo. Due to the small numbers of patients evaluated and inconsistent beneficial effects, the utility of PAH-specific therapy in WHO Group III PH remains unproven. A future clinical trial that is appropriately powered is needed to definitively determine the efficacy of this widely implemented treatment approach.

Indexed as

chronic lung diseaseCOPDILDpulmonary hypertensionWHO Group 3 Pulmonary Hypertension

Identifiers

PMID28680574
PMCPMC5448533
OpenAlexW2540839381

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.